Magnetism and Matter

Magnetism and Matter

These MCQs are intended for checking your Physics subject, Chapter Magnetism and Matter knowledge.

Tangent law is applicable only when:

The dimensional representation of magnetic flux density is :

S.I. unit of flux is :

The force between two parallel wire 2 × 10-7 Nm-1, placed 1 m apart to each other in vacuum. The electric current flowing through the wires is:

On quadrupling the moment of inertia of a magnet, its frequency of oscillation will become:

Ferrites may be:

The magnetic field strength due to a short bar magnet directed along its axial line at a distance r is B. What is its value at the same distance along the equatorial line?

In a moving coil galvanometer, we use a radial magnetic field so that the galvanometer scale is :

The magnetic lines of force inside a bar magnet:

A magnetic dipole moment is a vector quantity directed from:

Which of the following has a low value in ferrites?

Which of the following has higher magnetic susceptibility?

The magnetic field of earth is due to:

What is the angle of dip at a place where the horizontal component of earth’s magnetic field is equal to the vertical component?

The neutral point in the magnetic field of a horizontally placed bar magnet is a point where the magnetic field due to that bar magnet is:

A current carrying power line carries current from west to east. What will be direction of magnetic field 1 meter above it?

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